Document 5Dnw9244O2pBmG2LpykBap7mz

High vapor concentrations can cause dizziness and anesthesia. Continuing studies are being made on other possible health hazards due to vapor concentrations. In the meantime, PPG recommends that vapor concentrations in work areas should not exceed 50 ppm as a time-weighted average atmospheric concentration for an 8-hour day to avoid adverse effects on workmen. During periods of high vapor concentration, self-contained or air-supplied breathing apparatus should be used, More toxicity information appears on page 7 of the PPG manual, "Vinyl Chloride Monomer Handling and Properties," form A-994-115. SL 092090